average are getting about a third of their calories during the school day f you clean up the school food environment, it is a really good start. >> reporter: the center for science in the public interest says we need more federal involvement, not less. but critics draw the line at the lunchroom door. >> i think the result will be a lot of wasted food. >> they eat the fries and burger and throw out the vice president tables and fruit. >> reporter: it is the same at schools across the country where what is healthy is trashed. though in fairfax county, the machine use is put to the taste test j nothing going on the menu that hasn't passed a taste party. >> reporter: fairfax too bans judge junk food vending during school. still a report card by cspi gave virginia a d and maryland a d plus. while schools have cracked down, they face a backlash, not just from kids but parents revolting. >> they feel in some ways it is unamerican that their children should be able to make choices they want to make. >> reporter: unamerican for schools to ban what is bad for you. they kenny make kids eat it. sherry ly, fox 5